on 1st May we started our bathroom refit - including fitting a new shower cubicle with a smartap shower instead of a bath and electric shower, we were advised by our plumber to buy a positive head pump (ct60b), however, this did not appear to work, so we had to purchase a negative head pump (esp50cpv), as advised by smartap, we have tried everything to get the shower working properly, including moving the evalve into airing cupboard. Our shower will still not work - the evalve says it is not getting the 1 bar required to operate, my plumber says he cannot see a problem, but there obviously is one as the shower only trickles, its been so frustrating and i am not sure what to do now, I tried to return the shower about a month ago, with the mind to just install another electric one, but smartap would not authorise a refund due to it not being their fault. please advise,

Hi..some photo's of the install would help...is there a reason why the pump couldn't be installed at the base of the hot water cylinder ?(which would have saved you the cost of a universal/negative head pump).
Have you tried bypassing the processor in the loft?.
Why did Smartap say it was NOT their fault..did they send an authorised engineer?
If we could see the install the problem might be obvious!

Hi..some photo's of the install would help...is there a reason why the pump couldn't be installed at the base of the hot water cylinder ?(which would have saved you the cost of a universal/negative head pump)., I have bypassed the evalve but obviously I have no control over temperature loft?.
Why did Smartap say it was NOT their fault..did they send an authorised engineer?
If we could see the install the problem might be obvious!

Click to expand...

I can get photos later, I don’t know why plumber didn’t put pump at base of hot tank, he put it halfway down, I have bypassed the evalve to check water pressure but obviously have no control over temperature. Thanks for replying xx

It was installed by a plumber but we used existing pipe work when trying different things out, so I am to blame for that, the smartap tech had me change the pump, and try the shower evalve in the airing cupboard too, the plumber has been round but said he would sort it all out when problem is sorted xx
I am wondering if the problem could be because the flow from cold tank is split, so therefore has less pressure, a couple of times the pump has got too hot so that would make sense too - so if that is the case how can I fix it?
Can I run a new pipe from tank? Or do I feed shower directly from mains but then can I use same pump due to not running cold through? Am I able to block it off or do I need to buy a single impeller pump? I need to be able to test a solution first before I throw more money at my plumber xx

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